Home / 13,419,146,135.10-18,518,477,600.61-7,397,519,252.88

Finding the Fourth Proportional to 13,419,146,135.10, 18,518,477,600.61 and 7,397,519,252.88

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Solution

The fourth proportional to 13,419,146,135.10, 18,518,477,600.61 and 7,397,519,252.88 is: 10,208,607,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,146,135.10 : 18,518,477,600.61 = 7,397,519,252.88 : x
  2. Step 2: Convert to fraction form
    13,419,146,135.10/18,518,477,600.61 = 7,397,519,252.88/x
  3. Step 3: Cross multiply
    13,419,146,135.10x = 18,518,477,600.61 × 7,397,519,252.88
  4. Step 4: Simplify right side
    13,419,146,135.10x = 136,990,794,584,539,512,832
  5. Step 5: Solve for x
    x = 136,990,794,584,539,512,832/13,419,146,135.10
  6. Step 6: Final answer
    x = 10,208,607,403.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.